I would like to build a gauge to check my pressure. I could either do a T-line where the high pressure hose meets the hardline near the exhaust, OR at the leveler valve.

Does anybody know what the fitting(s) is/are? Any thoughts on either method? Anybody done it?

MB Gauge expensiveeeeee...phew!
Looks like its gotta be capable of doing 133bar/2000psi.

__________________
2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k